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Finding the Fourth Proportional to 80,568, 111,186 and 44,759.52

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Solution

The fourth proportional to 80,568, 111,186 and 44,759.52 is: 61,769.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,568 : 111,186 = 44,759.52 : x
  2. Step 2: Convert to fraction form
    80,568/111,186 = 44,759.52/x
  3. Step 3: Cross multiply
    80,568x = 111,186 × 44,759.52
  4. Step 4: Simplify right side
    80,568x = 4,976,631,990.72
  5. Step 5: Solve for x
    x = 4,976,631,990.72/80,568
  6. Step 6: Final answer
    x = 61,769.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.